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ＣＤＭＡ技术与现代蜂窝移动通信目前的数字移动通信网的主要多址方式是ＴＤＭＡ。ＴＤＭＡ系统（ＧＳＭ，ＤＡＭＰＳ）在频谱效率上约是模拟系统的３倍，容量有限；在话音质量上１３ｋｂｉｔｓ编码也很难达到有线电话水平；ＴＤＭＡ系统的业务综合能力较高，能进行数据...
CDMA technology and modern cellular mobile communications The current digital mobile communication network’s main multiple access mode is TDMA. The TDMA system (GSM, DAMPS) is about 3 times more efficient in spectrum efficiency than the analogue system, and has limited capacity. It is also very difficult to achieve the level of wired telephone with 13kbits coding in voice quality. The TDMA system has a higher overall business capability and can perform data analysis. .